Turning machine



Nov. 420, 1934.

G. F. YAGER TURNING MACHINE Filed Sept. 28, 1931 7 Sheets-Sheet l lllllllllli. l1

INVENTOR GEoRGE E YAGER G. F. YAGER TURNING MACHINE Novv. 2o, 1934.

Filed Sept. 28! 1931 '7 Sheets-Sheet 2 INVENToR Geo rye F V 7e r Wl/zzu ATTORNEYS Nov. 20, 1934.

G.'F. YAGER TURNING MACHINE Filed sept. 28,1931 7 sheets-sheet 5 INVENTOR @eorfe t ye/ ATTO RNEYS NOV. 20, 1934. |l YAGER l 1,981,260

TURNING MACHINE Filed Sept. 28, 1951 7 Sheets-Sheet 4 INVENTOR ATTORNEYS Nov. 2o, 1934. F YAGER f 1,981,260

TURNING MACHINE I 5 Filed Sept. 28, 1951 7 Sheets-Sheet 5 NOV. 20, 1934. G FVYAGER y 1,981,260

TURNING MACHINE Filed Sept. 28, 1951 7 Sheets-Sheet 6 17 INVENTOR ATTORNEY5 Nov. 20, 1934. G. F. YAGER '1,981,260

TURNING MACHINE m Filed Sept. 28, 1951 7 Sheets-Sheet 7 ATTORNEYS Patented Nov. 20, 1934 UNITED srarics 1,981,260 y TURNING MACHINE George F. Yager, Toledo, Ohio, assignor to The Bunting Brass & Bronze Company, Toledo, Ohio, a corporation of cOhio f l Application September 28, 1931, Serial No. 565,616

22 claims;

This invention relates generally to turning machines, such as those designed for turning tubular castings in the manufacture of bushings and the like and consists of certain novel features of construction, combinations and arrangements of parts that will be hereinafter more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is a side elevation of a turning machine embodying my invention and in section; Figure 21s a top plan view of the machine;

Figure 3 is an elevation of the left end of the machine with parts broken away;

Figure 4 is an elevation of the right end of the machine, with parts broken away, and 'showing the feeder jaws before they receive the work;

Figure 5 is an enlarged fragmentary elevation of a portion of the structure illustrated in Figure 4 and showing the feeder jaws in work receiving position;

Figure 6 is a view similar to Figure 5 but showing the jaws and associated parts in the position they Iassume after the work has been transferred by the jaws to a position in alignment with the arbors;

Figure 7 is a sectional View taken on the line 7-7 of Figure 5, showing by full lines the operative position of the means for transferring the work from the work holder to the jaws, and showing by dash and dot lines the inoperative position of said means;

Figure 8 is a sectional view taken on the line 8-8 of Figure 6 Figure 9 is a sectional View taken on the line 9 9 of Figure 8;

Figure 10 is a sectional view taken on the line 10-10 of Figure 3;

Figure 11 is a sectional view taken on the line 11-11 of Figure 5;

Figure 12 is a semi-diagrammatic view i1- lustrating the mechanism for actuating the tool slide.

Referring now to the drawings, 1 is the base or frame of the machine; 2 and 3 respectively are aligned spindle heads slidably mounted on the top 4 of the frame; 5 and 6 respectively are spindles mounted for rotary and longitudinal movements within suitable bearings in` said heads; 7 and 8 respectively are pulleys rigid with the spindles 5 and 6 and adapted to be driven by suitable belts (not shown) to cause rotation of .said spindles, and 9 and 10 respectively are levers pivoted intermediate their ends at 11 and 55 12 respectively and connected to the reduced outer ends of the spindles 5 and 6 to cause longitudinal movement of thespindles. 13 and 14v are arbors having tapered portions 15 and 16 respectively engaging correspondingly shaped recesses formed in the inner ends -of the spindles and having aligned cylindrical portions 17 and 18 respectively at their inner ends for insertion within opposite ends of a flanged tubular casting 19 constituting the work to be turned; 20 and 21 respectively are rockers within suitable slots 22 and 23 respectively in the arbors 13 and 14, having semi-spherical outer faces 24 and 25 `respectively rockably engaging the outer walls of the slots in said arbors, and having substantially flat inner faces 26 and 27 respectively for abutting engagement with opposite ends of the flanged tubular casting 19. Preferably these rockers 20 and 21 have transversely extending slots 28 and 29 respectively which extend rearwardly from the flat faces 26 and 27 and receive pins 30 and 31 respectively extending transversely of the arbors 13 and 14. 32 and 33 respectively are tie rods for the arbors extending longitudinally of the spindles 5 and 6 and secured at their outer ends by suitable nuts 34 and 35 respectively; 36 and 37 are cup-shaped members sleeved upon the inner ends of the spindles and having reduced tubular portions 38 and 39 respectively surrounding the cylindrical portions 17 and 18 respectively of the arbors and slotted as at 40 and 41 to receive the rockers 20 and 21; 42 are coil springs arranged within recesses 43 in the spindles 5 and 6 and engaging pins 44 projecting inwardly from the cup-shaped. members 36 and 37 for normally maintaining the reduced tubular portions 38 and 39 respectively of said cup-shaped members out of engagement with the tubular castings on the cylindrical portions of the arbors; 45 and 46 respectively are collars adjustably mounted upon the' cup-shaped members 36 and 37 and engageable with the bearings 48 and 49 respectively for the spindles 5 and 6. In use, these collars 45 and 46 are adapted to be held by clamp screws 45 and'46 in proper spaced relation to the bearings 48 and 49 so that engagement of the collars with the bearings when the cup-shaped members are moved outwardly causes the tubular casting to be stripped from the cylindrical portions 17 and 18 of the arbors.

50 is a shaft journaled in suitable bearings in the upright walls 51 and 52 respectively of the frame; 53 is a suitable shaft journaled in a bearing in the upright wall V51 in spaced relation to the shaft 50; 54 is a drive pulley rigid with the stub shaft 53 and adapted to be driven from a suitable source by a belt (not shown); 55 and 56 respectively are gears meshing with each other and rigid with the shafts 53 and 50; 57 is a stub shaft journaled in a bearing in the upright wall 52; 58 and 59 respectively are change gears meshing with one vanother and rigid with the shafts 57 and 50; 60 is a pinion on the stub shaft 57; 61 is a cam shaft journaledin suitable bearings in the upright walls 51 and 52; 62 is a gear keyed upon the 'cam shaft 61 and meshing with the pinion 60, and 63 isa clutch collar of suitable design controlling the driving connection between the stub shaft 57 and pinion 60 `and operable from a convenient point by the shifter fork 64, shaft 65 and lever66. 67, 68 and 69 respectively are cam drums keyed upon the cam shaft 61 at spaced points thereof; 70 is a cam fixed upon the drum 67 and having a cam surface 71; 72 is a cam fixed upon the drum 67 at one side of the cam and having a cam groove 73; 74 is a cam fixed to the drum 68 at one side thereof and having a cam surface 75; 76 is a cam fixed upon the drum 68 and having a cam groove 77, and 78 is a cam xed upon the drum 69 and having a cam groove 79. 80 and 81 respectively are tubular members carried by the lower ends of the levers 9 and 10; 82 and 83 respectively are rods extending through the tubular members 80 and 81; 84 and 85 respectively are plungers fastened to the rods 82 and 83 and having flanges 86 and 87 respectively within the tubular members 80 and 81; 88 and 89 respectively are coil springs surrounding the rods within the *tubular `members 80 and 81 and abutting closures 90 and 91 respectively at the outer ends ofthe tubular members 80 and 81; 92 and 93 respectively are nuts threaded upon the shafts 82 and 83 and engaging the inner ends of the ingsv19 constituting the work are adapted to be supported before being transferred tothe varbors 13 and .14; 103 is an index plate' fastenedy by screws 104 to one side of the dial 100 and provided in its periphery with ya series of spaced notches 'or recesses 105; 106 is a lever rotatable upon a stub shaft 107 mounted in brackets rigid with the frame; 108 is a'link havingfa hook 109 at its free end engageable with the notches in the index plate to effect a step by step rotation of the dial 100 in a clockwise direction; 110 is a pawl pivoted at 111 upon a web 112 of the bracket 99 and engageable with the notches 105 in the index plate 103. Preferably this pawl 110 has a rearward extension 113 connectedby a coil spring 114 to a pin 115 projecting laterally from the link 1078. A pin 113" projects laterally .from the link 108 and is engageable with the extension 113 to'remove the pawl 110 from the index plate 103. lAnother coilspring 109 is connected to this pin 115 and to a lugk116 projecting from the bracket 99 and` serves to hold the hook 109 in engagement with the index plate.

117 is abell crank lever pivoted upon the shaft 107 and carrying a roller 118 that engages the cam lever .117 and to the framev 1 of the machine and maintains the roller 118 in engagement with the cam. surface 75 of the cam 74. 127 is a stub shaft journaled in'y a bracket 128 bolted to the frame 1 of the machine; 129 is an arm swingingly mounty ed upon the stub shaft 127 and actuable by a rod 130 adjustably connected to the upper free end of the lever 117, and 131 and .132 respectively are cooperating jaws carried by the arm 129 at the lower end thereof and adapted to receive one at a time the flanged tubular castings 19 from the pins 102 carried by the dial and to transfer the'said castings to a point in alignment with the cylin` drical portionsr17 and 18 respectively of the arbors. 133 and 134 respectively are stops mounted on the shaft 127 and engageable with the web 135 of the bracket 128 to limit the swinging movement of the arm 129. l

136 is a plunger slidably mounted in suitable brackets upon the frame land having a bifurcatcd inner end 137 adapted to straddle the pins 102 on the dial 100 for'removing therefrom ,thel flanged castings19 into the jaws 131 and 132; 138 is a lever pivoted intermediate its ends upon a stub shaft 139 forreciproca'ting the plunger 136. As shown, the upper endf of this lever carries a sliding block 140 which is bolted to the plunger 136 while the lower end of the lever carries a roller 141 that is normally held by a coil spring 142 in engagement withthe cam surface 71 of the cam 70. U

143 .is a tool support slidably mounted upon a raised portion 144 of the frame 1 and carrying a reciprocating tool holderA 145; 146 and 147 respectively are turning tools clamped in the holder and respectively engageable with the flange 148 and tubular portion 149 of the casting 19; 150 is a bolt connected to the rear end of the holder 145 and slidably engaging a boss l151 upon the support 143,v and 152, 153, 154 and 155 respectively areadjusting nuts on the bolt 151 at opposite ends of the boss 150. 156 isa bell crank lever pivoted at 157 upon the support 143 and connectedby the pivot pin 158 tothe tool holder 145; 159 is a link upon a stub shaft 162 Vsupported in the frame 1; l'

163v is a lever pivoted at its lower end upon a stub shaft 164 and connected by an adjustable link 165 to a lever 161 at'the lower end thereof, and 165 is a roller carried by the leverl 163 and engaging the cam groove79 in the cam 78.

In operation the `flanged bushings 19 are placed n by hand upon the pins 102 carried bythe dial. Assuming the parts to be in the position illustrated in Figure 5, the plunger 136-actuated by thelever 138 moves a flanged casting 19 from the -fadjacent pin 102 on the dial 100 into the jaws 131 and 132, as illustrated in Figure 7, and the lever 117 and rod 1 30 swings the arm 129 to theA right vso rthat the flanged bushing 19 carried by the V,jaws will be positioned in alignment with the cylindrical portions 17 and 18 ofthe arbors, as illustrated in Figure 6. The levers 9 and 10 then move the spindles and 6 inwardly so that the cylindrical portions 17 and 18 of the arbors will be inserted into opposite ends of the flanged bushing 19 and the flat faces 264and 27 respectively of the rockers carried by the arbors will abut opposite ends and firmly grip the casting, as illustrated in Figure 8.` When the link 159 is moved to the left, the bell 'crank 156 is moved about its pivot with the result that the tool holder 145 is moved forwardly until the nut 154 abuts the-rear end of the boss 151 whereupon the'turning tools 14S and 147 will be in operative turningposition relative to the flanged tubular casting-19 constituting the work. Continued movement ofthe link 159 to the left causes the support 143V and holder 145 to move in unison to the left so that the tools 146 and 147 carried by the holder 145 will be moved lengthwise of the castingrto effect the turning operation. Upon completion of the turning operation aforesaid the link 159 is moved to the right by the lever 161 and causes the bell crank lever 156 to turn in the oppositedirection about its pivot so that the tool holder will be moved rearwardly until the adjusting nut 153 abuts the boss 151. As a result the tools 146 and 147 will be withdrawn from the casting, so that the casting will not be marred, scratched or otherwise damaged by the tools 146 and 147 when the holder 145 and support 1 are moved by the link 159 lengthwise of the casting to their initial starting positions. The spindles 5 and 6 are then moved outwardly by the levers 9 and 10 whereupon the collars and 46 will abut the bearings 48 and 49 and continued outward movement of the spindles then causes the reduced tubular por*- tions 38 and 39 of the cup-shaped members 36 and 37 to strip the castings 19 from the cylindrical portions 17 and 18 of the arbors. As a result the castings will fall into the inclined chute 170 discharging it into a suitable receptacle (not shown). The lever 117 and rod 130 actuated by the cam 74 returns the arm'129 to the position illustrated in Figure 4, and the lever 106 connected by the parts 121 and 120 to the lever 117 is actuated by the latter and causes the link 108 to turn the dial so that the next pin 102 will be placed in alignment with the jaws 131 and 132, as illustrated in Figure 5. The spring 109 will cause the hook 109 of the link 108 to be constantly in engagement with the index plate 103. When said hook 109 is not in one of the notches 105 it rides upon the periphery of said index plate, as illustrated in Figures 3 and 6. In this connection, it will be noted that the pin 113 will engage the extension 113 of the pawl and cause the latter to be withdrawn from engagement with the index plate 103 when the hook 109 rides upwardly in the periphery of the index plate before dropping into the next notch 105 and will retain the pawl 110 disengaged while the dial 100 is being turned. After the dial is turned the spring 113 will return the pawl into engagement with the next notch to hold the dial against movement. The plunger 136 actuated by the lever 138 is then moved as aforesaid to move the next bushing into the jaws and the operations just described are repeated.

W at I claim as my invention is:

1. A machine cf the class described including a rotating shaft, a cam on said shaft, a rotary work holder, movable means for receiving work from the holder, actuating means for the movable means including a lever operable by said cam,

and means for turning the holder including means operable by the lever aforesaid.

2; A machine of the class describedv including a rotary work holder, a pair of jaws movable adjacent and adaptedI to receive work from said holder, a member for removing work from the holder into said jaws, a cam shaft, two cams on said shaft, a driving connection between one of said cams andsaid member, a driving connection between the other of said cams and said jaws, andineans operable by the last mentioned connection for actuating said holder.

3.--A machine of the class described including a rotar).7 work holder, a pair of jaws movable adjaeentand adapted to receive work from said holder, a rotating shaft, a cam on the shaft, a driving connection between the cam and jaws, and means operable by said connection and actuating said holder.

` 4. A machine of the class described including a rotating shaft, a cam on said shaft, a lever operable by said cam, a movable work holder, means actuable by said lever for moving the holder, and means also actuable by said lever for moving work relative to said holder.

,5; A machineof the class described including a rotatable shaft, a cam on the shaft, a lever operable by said cam, a movable work holder, a second lever adjustably connected to and actuable by the first lever, means actuable by the second lever for moving the holder, and means actuable by the first lever for moving work relative to the holder. f

6. A machine of the class described including a frame, a bracket carried by the frame, a rotating shaft carried by the frame, a cam on said shaft, a lever actuable by said cam, a second lever free with respect t-o but actuable by the first lever, a rotary work holder, means actuable by the second lever for moving said holder, including an index plate secured to the holder and having notches in its periphery, a link connected to the second lever and having a hook portion engageable with said notches, and yieldable means carried by the bracket aforesaid for maintaining the hooked portion in engagement with said plate.

7. A machine of the class described including a frame, a bracket carried by the frame, a rotating shaft carried by the frame, a cam on said shaft, a lever actuable by said cam, a second lever l free with respect to but actuable by the first lever, ra rotary work holder, meahs actuable by the second lever for moving said holder, including an index plate secured to the holder and having notches in its periphery, a` link connected to the second lever and having a hook portion engageable with said notches, and means for holding the holder against movement after it has been moved,

including a pawl pivoted on said bracket and enjizgageable with the notches in the plate, said pawl having an extension, and a spring terminally secured to said extension and link.

8. A machine of the class described including a frame, a bracket carried by the frame, a rotating shaft carried by the frame, a cam on said shaft, a lever actuable by said cam, a second lever actuable by the first lever, a rotary work holder, means actuable by the second lever for moving said holder, including an index plate secured to j l the holder and having notches in its periphery, a link connected to the second lever and having a hoek porti n engageable with said notches, means for holding the holder against movement after it has been moved, including a pawl pivoted fia on saidb'racket and engageable with the notches in the plate, said pawl having an extension, and a spring terminally secured to said extension and link, and means for releasing theA pawl, including a pin on the link engageable with the extension.

9. A machine of the class described including an arbor for the Work, a rotary work holder adjacent said arbor, means for transferring work from the holder to said arbor, and a single cam actuated element operatively connected to said work holder and transferring means and constituting a common actuating means therefore.'V

'10. A machine of the class described including a pair of aligned arbors for lthe work, a rotary Work holder adjacent said arbors,A means for transferring the Work from the holder to a Apoint in alignment with the arbors, and actuating means for the Work holder and transferring means including two levers operatively V,connected to said holderand means and operatively associated with each other, and a single cam actuated member for operating said levers.

l1. A machine of the class described including a rotary workholder, means movable in a planel substantially at right angles to the plane of rotation of said holder for removing work fromthe holder, means movable in timed relation to said removing meansin a plane substantially parallel to the plane of rotation of said holder for receiving the work so removed, and a common drive for said work holder and receiving means.

12; 'A machine of the class described including a rotary work holder, reciprocating means for removing work from the holder, swinging means for receiving the work so removed, and actuating means for said work holder and swinging means including two levers operatively connected to said holder and means andv operatively-connected to each other, and a driving element associated with one of said levers.

13. In a machine of the class described, a frame, a stub shaft carried by the frame, a cam shaft carried by the frame, a cam carried by the cam shaft, two levers mounted on the stub shaft, a movable work holder, means for moving work relative to the holder, a driving connection between one of said levers and the holder, andy a driving connection between the other lever and said moving means, the connection between the nrst mentioned lever and holder being dependent upon and operable by the last mentioned driving connection.

14. A machine rof the class described including a rotary member having means projecting laterally from one side thereof for holding the work, a pair of jaws movable in a plane substantially parallel to said member, and means movable in a plane substantially at right angles to the plane of rotation of said member across the periphery of said member for moving work endwise from the holder into the jaws.

15. In a machine of the class described, a rotary dial. provided at spaced points of its periphery with laterally projecting members for carrying the work, and means for removing work from the members including a member mounted to reciprocate in a plane substantially at right angles to the plane of rotation of thedial, said reciprocating member having a bifurcated end portion movable transversely of the periphery of the dial and arranged to straddle and move longitudinally of said laterally projecting members.

16. In a machine of the class described, a frame,

a stub shaft carried by the frame, a cam shaft carried by the frame, a cam Ycarried by the cam shaft, a lever on the stub shaft and having a portion operable directly by the cam, work receiving means 'operable by said lever, a second lever on the stub shaft and connected to the first lever so as to be 4operated thereby, a work holder adjacentthe receiving means and operable by the -second mentioned lever, and means for transferring work from the holder to said receiving means. 4 17. A machine of the class described including` a rotary work holder, reciprocating means movable transversely of the periphery of said rotary workholder .for removing work from the holder, means movable in timed relation to said removing means -in a plane substantially parallel to the plane of rotation of said holderfor receiving the work so removed, means for actuating said receiving means, and means actuated by said last mentioned means for actuating said work holder. y

18. A machine of the class described including a rotary workholder having a series of laterally projecting pins `upon which the work may be mounted, means for removing work from the 10@ holder including a plunger having a bifurcated portion movable transversely of the periphery of the'rotary holder and adapted to straddle and move longitudinally of said pins, and means movable in timed relation to said removing means for receiving the Work so removed.

19. In a machine of the class described, a frame, a cam shaft carried by the frame, a c am on said shaft, a lever carried by the frame and having a portion operable directly by the cam, work re,- lllil ceiving means operable by said lever, a second lever carried by the frame and connected to the rst lever so as to be operated thereby, a work holder operable by the second mentioned lever, the connection between said levers being adjust.- able so that movement of the holderk may be varied relative to the work receiving means, and means for transferring work from the holder to said receiving means.

20. In a machine of the class described, a cam, a lever having a portion operable directly by said cam, work receiving means operable by said lever, a second lever connected to the first lever so as to be operated thereby, a Work holder adjacent the receiving means and operable by the second menl` tioned lever, and means for transferring work from the holderto said receiving means.

-21'. A machine of the class described including a rotary work holder,` a reciprocating means for removing work from the holder, means movable in timed relation to the removing means for receiving the Work so removed, means for actuating said receiving means, and means actuated by said last mentioned means for actuatingsaid work holder.

22. In a machine of the class described, a cam, a lever having a portion operable by said cam, Work receiving'means operable by said lever, a second lever connected to the first lever so as to be operated thereby, a Work' holder operable by 140 the second mentioned lever, the connection be'- tween said levers being adjustable so that movement of the holder may be varied relative to the work receiving means, and means for transferring work from the holder to the receiving 14,5 means.

GEORGE F. 'YAGER. 

